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28 Dez 1875 Jahr - Telephone

Beschreibung:

a system that converts acoustic vibrations to electrical signals in order to transmit sound, typically voices, over a distance using wire or radio.

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Timeline of Technology Dorian

ByDorian Lavier

12 Sep 2017

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757

Datum:

28 Dez 1875 Jahr

Jetzt

~ 149 years ago

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